Question

A 78 kg jogger is headed due east at a speed of 1.1 m/s. What is the jogger's momentum?

a) 85.8 kg·m/s east
b) 78 kg·m/s east
c) 1.1 kg·m/s east
d) 1.1 kg·m/s

Answer 1

The momentum of the jogger is 85.8 kg·m/s east.

Step-by-step explanation:

The momentum of an object can be calculated by multiplying its mass by its velocity. In this case, the jogger's mass is 78 kg and the velocity is 1.1 m/s. So the momentum is calculated as:

Momentum = mass x velocity = 78 kg x 1.1 m/s = 85.8 kg·m/s

Since the jogger is headed due east, the momentum will also be in the east direction. Therefore, the correct answer is (a) 85.8 kg·m/s east.